A comprehensive demographic study of more than 200 countries by the Pew Forum on Religion & Public Life finds that roughly a quarter (23%) of the estimated 2009 world population is Muslim. Overall, there are 1.57 billion Muslims in the world today. The Middle East-North Africa region of the globe contains the highest percentage of Muslims in the world. In more than half of the 20 countries in the region, populations are 95% Muslim or greater. However, just about 20% of the total Muslim population lives in this region. In fact, more than 60% of the global Muslim population resides in Asia. In many of these countries the Muslim population is a minority, but still quite large. India, for example, has the third-largest population of Muslims worldwide. China has more Muslims than Syria, and Russia is home to more Muslims than Jordan and Libya combined. Read More
Global Muslim Population
Russell Heimlich is a former web developer at Pew Research Center.